$310,000 Mortgage Payment
Monthly principal & interest by interest rate and loan term.
A $310,000 mortgage at 6.50% over 30 years costs about $1,959 a month in principal and interest, and $395,388 in interest over the life of the loan.
Early payments are mostly interest: in the first year only a small slice of each instalment reduces the balance. That is why a shorter term saves so much — the rate is similar, but the interest has far less time to compound.
Choosing a term
- $1,959 a month on a 30-year term, with $395,388 of interest paid in total.
- $2,311 a month on a 20-year term, with $244,707 of interest paid in total.
- $2,700 a month on a 15-year term, with $176,077 of interest paid in total.
- Property tax, homeowners insurance, PMI and HOA dues are not included — a common reason a real payment lands 20-30% above the figure shown here.
Monthly Payment by Rate & Term
| Interest Rate | 30 years | 20 years | 15 years |
|---|---|---|---|
| 5% | $1,664 | $2,046 | $2,451 |
| 5.5% | $1,760 | $2,132 | $2,533 |
| 6% | $1,859 | $2,221 | $2,616 |
| 6.5% | $1,959 | $2,311 | $2,700 |
| 7% | $2,062 | $2,403 | $2,786 |
| 7.5% | $2,168 | $2,497 | $2,874 |
| 8% | $2,275 | $2,593 | $2,963 |
Principal & interest only. Property tax, insurance, PMI and HOA are extra.
At 6.5% over 30 Years
| Loan Amount | $310,000 |
|---|---|
| Monthly Principal & Interest | $1,959 |
| Total Interest (30 yr) | $395,388 |
| Total of Payments | $705,388 |
First-Year Amortization (6.5%, 30 yr)
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $280 | $1,679 | $309,720 |
| 2 | $282 | $1,678 | $309,438 |
| 3 | $283 | $1,676 | $309,155 |
| 4 | $285 | $1,675 | $308,870 |
| 5 | $286 | $1,673 | $308,584 |
| 6 | $288 | $1,671 | $308,296 |
| 7 | $289 | $1,670 | $308,006 |
| 8 | $291 | $1,668 | $307,715 |
| 9 | $293 | $1,667 | $307,422 |
| 10 | $294 | $1,665 | $307,128 |
| 11 | $296 | $1,664 | $306,832 |
| 12 | $297 | $1,662 | $306,535 |
Early payments are mostly interest; principal builds over time.
Last reviewed: November 2026
Data sources: Standard mortgage amortization formula; Principal & interest only — excludes taxes, insurance, PMI, HOA.
Disclaimer: Payment estimates are for principal and interest at the rates shown. Your actual payment depends on your rate, taxes, insurance and fees. Not financial advice.